<template>
  <div class="row">
    <div v-for="column in columnList" :key="column.id" class="col-4 mb-3">
      <div class="card h-100 shadow-sm">
        <div class="card-body text-center">
          <img :src="column.avater" :alt="column.title" class="rounded-circle border border-light w-25 my-3">
          <h5 class="card-title">{{ column.title }}</h5>
          <p class="card-text text-left">{{column.description}}</p>
<!--          <router-link class="btn  btn-outline-primary" :to="{name: 'column', params: {id: column.id}}">进入专栏</router-link>-->
          <router-link class="btn  btn-outline-primary" :to=" `/column/${column.id}`">进入专栏</router-link>
        </div>
      </div>
    </div>
  </div>
</template>

<script lang="ts">
import { defineComponent, PropType, computed } from 'vue'

export interface ColumnProps {
  id: number;
  title: string;
  avater?: string;
  description: string;
}

export default defineComponent({
  name: 'ColumnList',
  props: {
    list: {
      type: Array as PropType<ColumnProps[]>,
      required: true
    }
  },
  setup (props) {
    const columnList = computed(() => {
      /* eslint-disable */
      /* tslint:disable */
      // @ts-ignore
      return props.list.map(column => {
        if (!column.avater) {
          column.avater = require('@/assets/column.jpg')
        }
        return column
      })
    })
    return {
      columnList
    }
  }
})
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
</style>
